I have a sailboat with a 27HP Yanmar. I'm interested in changing the coolant used for the internal cooling. Does anyone have an easy way to do it? Tha manual indicates there are three 'drains' on the engine, though I can only find two. Thanks!
they are located on the starboard side of the engine. Look fror 2 plactic tubes that hang down. They each coonect to a tiny faucet that will open the drains.
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